CN207454285U - Low temperature chemical pump - Google Patents
Low temperature chemical pump Download PDFInfo
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- CN207454285U CN207454285U CN201721472864.9U CN201721472864U CN207454285U CN 207454285 U CN207454285 U CN 207454285U CN 201721472864 U CN201721472864 U CN 201721472864U CN 207454285 U CN207454285 U CN 207454285U
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Abstract
The utility model discloses a kind of low temperature chemical pumps, including the pump housing, lid sets the pump cover of the pump housing and lid sets the end cover of pump cover, pump cover is provide with the sprung parts of end cover back to being connected on one side for the pump housing, the pump housing, pump cover, end cover in sprung parts with being equipped with same root main shaft, position on main shaft between pump cover and end cover is equipped with axle sleeve, mechanical seal is arranged on axle sleeve, mechanical seal includes being sheathed on the Packing spring seat of axle sleeve successively, compress spring, alloy rotating ring and alloy stationary ring, the one side of alloy rotating ring towards alloy stationary ring is equipped with the first alloy seal ring, alloy rotating ring is wholely set with the first alloy seal ring, the one side of alloy stationary ring towards alloy rotating ring is equipped with the second alloy seal ring, alloy stationary ring is wholely set with the second alloy seal ring.The utility model has the following advantages and effect：This programme utilizes new mechanical structure, prevents alloy stationary ring from occurring bursting phenomenon, the leakproofness of elevating mechanism sealing with alloy rotating ring.
Description
Technical field
The utility model is related to a kind of pump, more particularly to a kind of low temperature chemical pump.
Background technology
Chemical pump is very extensive in sector applications such as chemistry, food, medicine, papermaking, and chemical pump is since its is compact-sized, body
Product is small, light-weight, and installation floor space is small and more favourable.
Notification number is that the Chinese patent of CN2239540Y discloses a kind of mechanical seal in chemical pump rotation axis, by
Sealing system and water rinse-system composition, are cased with O-ring seal together, there are twice in the outer surface of stationary ring between rotating ring and rotating seat
O-ring seals, several compression springs make stationary ring that will be bonded with rotating ring with certain pressure embedded in a pair of seal rings therebetween, and formation can
The sealing system leaned on；Water inlet is on gland, and water outlet is on pump cover, flushing water guide sleeve outer surface and stationary ring endoporus right end mistake
Cooperation of being full of is linked to be one, and there is gap in outer surface with stationary ring endoporus left end, and internal diameter size is more than the diameter of axle, and it is reasonable to form flow direction
Water rinse-system.
One side opposite between rotating ring and stationary ring is respectively embedded there are one sealing ring in above-mentioned patent, passes through a pair of seal rings
End face composition friction it is secondary, for playing sealing function；And the material of sealing ring is arranged to hard alloy, stationary ring and rotating ring
Material is arranged to stainless steel.When chemical pump is in transporting low temperature cold medium, the low temperature generated in cold medium can be by axis and pump cover
It conducts to mechanical seal；Since the coefficient of expansion of cemented carbide material and stainless steel material is different, when hard alloy with it is stainless
When steel is shunk, the contraction speed of stainless steel material is more than the contraction speed of hard alloy, goes out so as to cause stationary ring and rotating ring
The phenomenon that now bursting influences the leakproofness of mechanical seal.
Utility model content
The purpose of this utility model is to provide a kind of low temperature chemical pump, the sealing of low temperature chemical pump energy elevating mechanism sealing
Property.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of low temperature chemical pump,
The pump cover of the pump housing is set including the pump housing, lid and lid sets the end cover of pump cover, and the pump cover is connected with cover on one side back to the pump housing
If the sprung parts of end cover, same root main shaft is equipped in the pump housing, pump cover, end cover and sprung parts, it is described
Position on main shaft between pump cover and end cover is equipped with axle sleeve, and mechanical seal, the machinery are arranged on the axle sleeve
Sealing includes being sheathed on the Packing spring seat of axle sleeve, compression spring, alloy rotating ring and alloy stationary ring, the alloy rotating ring court successively
The first alloy seal ring is equipped with to the one side of alloy stationary ring, the alloy rotating ring is wholely set with the first alloy seal ring, described
The one side of alloy stationary ring towards alloy rotating ring is equipped with the second alloy seal ring, the alloy stationary ring and the second alloy seal ring one
It sets.
By using above-mentioned technical proposal, by alloy rotating ring, the first alloy seal ring, alloy stationary ring and the second alloy seal
The material of ring is disposed as alloy material so that alloy rotating ring, the first alloy seal ring, alloy stationary ring and the second alloy seal ring
The coefficient of expansion of material is identical；And pass through and be arranged to be wholely set by alloy rotating ring and the first sealing ring, alloy stationary ring and second
Sealing ring is arranged to be wholely set so that alloy rotating ring can realize that synchronous, alloy stationary ring and second are close with the first sealing ring
Seal ring can realize synchronous, the phenomenon that so as to prevent alloy rotating ring and alloy stationary ring from bursting, elevating mechanism sealing it is close
Feng Xing.
It is further arranged to：The mechanical seal include being arranged at the first sealing ring between alloy rotating ring and axle sleeve and
The second sealing ring being arranged between alloy stationary ring and end cover, the end cover are equipped with what is be embedded for the second sealing ring
Annular groove.
By using above-mentioned technical proposal, increase the sealing between main shaft and alloy rotating ring by the setting of the first sealing ring
Property, the setting of the second sealing ring increase leakproofness between end cover and alloy stationary ring so that mechanical seal can reach more preferable
Sealing effect；And pass through the contact area between setting the second sealing ring of increase of annular groove and end cover so that alloy is quiet
Better seal effect can be reached between ring and end cover.
It is further arranged to：The bottom of the pump housing is equipped with the row mouthful of connection pump body chamber, and the row mouthful is equipped with
For the sealing element of the row's of sealing mouth.
By using above-mentioned technical proposal, the pumped (conveying) medium that pump body is kept in can be discharged by arranging setting for mouth, to low temperature
The media implementation cleaning of transmission in chemical pump, and pass through sealing element and be used to implement sealing to arranging mouth.
It is further arranged to：The sprung parts are internally provided with shoe cream room, the shoe cream room be located at end cover compared with
The opposite side of pump cover, is equipped with bearing between the sprung parts and main shaft, the bearing connects setting, the suspension with shoe cream room
The fuel feed hole and oil outlet of connection shoe cream room are respectively equipped on component, the fuel feed hole on oil outlet with being equipped with sealing bolt.
By using above-mentioned technical proposal, the active force of lubrication can play bearing by the setting of shoe cream room, so as to prolong
The service life of long bearing；When the medium of low temperature chemical pump transmission is cryogenic media, pass through the fluid energy stored in shoe cream room
Insulation effect is played to bearing, so as to reduce the material deformation of bearing, promotes the service life of bearing.
It is further arranged to：Position distribution on the sprung parts positioned at shoe cream room lateral wall has cooling fin.
It, can be to storage by the setting of cooling fin by using above-mentioned technical proposal inside shoe cream room when the temperature is excessively high
Oil pocket radiates so that the temperature on bearing will not be excessively high, further promotes the service life of bearing.
It is further arranged to：Position on the sprung parts between pump cover and shoe cream room is equipped with communication seals end cap
Peep hole.
It, can be to the link position between end cover and main shaft by the setting of peep hole by using above-mentioned technical proposal
Real Time Observation is carried out, and certain insulation effect can also pump up low temperature chemical industry by the setting of peep hole.
It is further arranged to：The position that the pump cover contradicts the pump housing is equipped with seal washer.
By using above-mentioned technical proposal, the setting of seal washer increases the leakproofness between pump cover and the pump housing.
It is further arranged to：The sprung parts are equipped with motor compared with the opposite side of pump cover, and the main shaft is towards motor
One end be pierced by sprung parts and pass through metallic membrane shaft coupling and motor and realize and be driven.
By using above-mentioned technical proposal, the transmission between main shaft and motor is used to implement by metallic membrane shaft coupling,
The structural strength connected between lifting spindle and machine shaft.
It is further arranged to：Position on the sprung parts lateral wall between peep hole and shoe cream room, which is surrounded with, to be added
Qiang Ti.
By using above-mentioned technical proposal, pass through the structural strength for being arranged to add to sprung parts of intensive aspect.
It is further arranged to：The end cover is equipped with the cooling water inlet pipe of connection mechanical seal.
By using above-mentioned technical proposal, the setting of water inlet pipe is cooled down for towards being passed through cooling water inside mechanical seal,
Cool down to mechanical seal inside, the service life of prolonged mechanical sealing.
In conclusion the utility model has the advantages that：Alloy rotating ring and the first alloy seal ring are arranged to
It is wholely set, alloy stationary ring and the second alloy seal ring is arranged to be wholely set, prevent alloy stationary ring from occurring with alloy rotating ring
Burst phenomenon, the leakproofness of elevating mechanism sealing；Heat preservation to bearing is used to implement and in cooling fin by the setting of shoe cream room
Under the action of so that the temperature on bearing will not be excessively high, extends the service life of bearing.
Description of the drawings
Fig. 1 is the structure diagram of embodiment；
Fig. 2 is the partial structural diagram of embodiment；
Fig. 3 is A portions enlarged drawing in Fig. 2.
In figure：1st, the pump housing；2nd, pump cover；3rd, end cover；4th, sprung parts；5th, main shaft；6th, mechanical seal；6.1st, bullet is sealed
Spring abutment；6.2nd, spring is compressed；6.3rd, alloy rotating ring；6.4th, alloy stationary ring；6.5th, the first sealing ring；6.6th, the second sealing ring；7、
First alloy seal ring；8th, the second alloy seal ring；9th, annular groove；10th, Pai Kou；11st, sealing element；12nd, shoe cream room；13rd, bearing；
14th, fuel feed hole；15th, oil outlet；16th, sealing bolt；17th, cooling fin；18th, peep hole；19th, seal washer；20th, motor；21st, it is golden
Belong to diaphragm coupling；22nd, intensive aspect；23rd, water inlet pipe is cooled down；24th, impeller；25th, axle sleeve.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
With reference to figure 1, a kind of low temperature chemical pump, including the pump housing 1, the one side fixed cover of the pump housing 1 is equipped with pump cover 2, pump cover 2 and pump
Seal washer 19 is equipped between body 1；The bottom of the pump housing 1 offers the row mouthful 10 of connection 1 internal chamber of the pump housing, and row's mouth 10 is equipped with
Sealing element 11, sealing element 11 can be the bolt being threadedly coupled with row's mouth 10.The Single port of pump cover 2 back to the pump housing 1 is fixed with close
Lid 3 is blocked, the lateral wall of pump cover 2 back to 1 one side of the pump housing is fixed with the sprung parts 4 for being provide with end cover 3, sprung parts 4
The peep hole 18 of communication seals end cap 3 is equipped with close to the position of pump cover 2, the axle center of peep hole 18 around sprung parts 4 is surround
It sets, shoe cream room 12 is equipped in sprung parts 4.The pump housing 1, pump cover 2, end cover 3 in sprung parts 4 with being equipped with same root master
Axis 5, the position that the pump housing 1 is located on main shaft 5 are fixed with impeller 24, the position on main shaft 5 between pump cover 2 and end cover 3
Axle sleeve 25 has been installed, mechanical seal 6 is arranged on axle sleeve 25.
It is arranged with bearing 13 between main shaft 5 and sprung parts 4, bearing 13 connects setting with shoe cream room 12, on sprung parts 4
The fuel feed hole 14 of connection shoe cream room 12 and oil outlet 15 are respectively equipped with, fuel feed hole 14 on oil outlet 15 with being threaded with sealing
Bolt 16.Lateral wall on sprung parts 4 positioned at shoe cream room 12 is fixed with cooling fin 17, and cooling fin 17 is around main shaft 5
Center of circle circumferential array is set；Position of 4 lateral wall of sprung parts between peep hole 18 and cooling fin 17 is fixed with circular
Intensive aspect 22 in 5 center of circle of main shaft, main shaft 5 is located to be connected close to one end of sprung parts 4 by metallic membrane shaft coupling 21
There is motor 20.
Referring to figs. 2 and 3, mechanical seal 6（With reference to figure 1）Packing spring seat 6.1, pressure including being sheathed on axle sleeve 25 successively
Contracting spring 6.2, alloy rotating ring 6.3 and alloy stationary ring 6.4, the end face of alloy stationary ring 6.4 back to alloy rotating ring 6.3 contact at close
Block lid 3；Packing spring seat 6.1 is fixed on axle sleeve 25, be arranged between alloy rotating ring 6.3 and axle sleeve 25 first sealing ring 6.5,
The second sealing ring 6.6 is arranged between alloy stationary ring 6.4 and end cover 3, end cover 3 is equipped with for the second sealing ring 6.6
The annular groove 9 being embedded.The end face of alloy rotating ring 6.3 towards alloy stationary ring 6.4 is equipped with the first alloy seal ring 7, and the first alloy is close
It is wholely set between seal ring 7 and alloy rotating ring 6.3；The end face of alloy stationary ring 6.4 towards alloy rotating ring 6.3 is equipped with the second alloy
Sealing ring 8 is wholely set between second alloy seal ring 8 and alloy stationary ring 6.4.End cover 3 is equipped with connection mechanical seal 6
Cooling water inlet pipe 23.
Alloy stationary ring 6.4, alloy rotating ring 6.3, the first alloy seal ring 7 and the second alloy seal ring 8 are alloy material,
And being located at the component that medium passes through on low temperature chemical pump will make low temperature work(pump adapt to -100 Celsius by low-temperature treatment
It spends to 200 degrees Celsius of process requirements；The model HD of low temperature chemical pump.
This specific embodiment is only explanation to the utility model, is not the limitation to the utility model, ability
Field technique personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but
As long as it is all protected in the right of the utility model be subject to Patent Law.
Claims (10)
1. a kind of low temperature chemical pump sets the pump cover (2) of the pump housing (1) including the pump housing (1), lid and lid sets the sealed end of pump cover (2)
It covers (3), the pump cover (2) is provide with the sprung parts (4) of end cover (3) back to being connected on one side for the pump housing (1), the pump housing
(1), pump cover (2), end cover (3) are located at pump with being equipped with same root main shaft (5) in sprung parts (4) on the main shaft (5)
The position covered between (2) and end cover (3) is equipped with axle sleeve (25), and mechanical seal (6) is arranged on the axle sleeve (25), special
Sign is：The mechanical seal (6) include be sheathed on successively axle sleeve (25) Packing spring seat (6.1), compression spring (6.2),
Alloy rotating ring (6.3) and alloy stationary ring (6.4), the one side of the alloy rotating ring (6.3) towards alloy stationary ring (6.4) are equipped with first
Alloy seal ring (7), the alloy rotating ring (6.3) are wholely set with the first alloy seal ring (7), the alloy stationary ring (6.4)
The second alloy seal ring (8), the alloy stationary ring (6.4) and the second alloy seal are equipped with towards the one side of alloy rotating ring (6.3)
Ring (8) is wholely set.
2. low temperature chemical pump according to claim 1, it is characterised in that：The mechanical seal (6) includes being arranged at alloy
The first sealing ring (6.5) between rotating ring (6.3) and axle sleeve (25) and it is arranged at alloy stationary ring (6.4) and end cover (3)
Between the second sealing ring (6.6), the end cover (3) is equipped with the annular groove (9) being embedded for the second sealing ring (6.6).
3. low temperature chemical pump according to claim 1, it is characterised in that：The bottom of the pump housing (1) is equipped with the connection pump housing
(1) row mouthful (10) of internal chamber, the row mouthful (10) are equipped with for the sealing element (11) of the row's of sealing mouth (10).
4. low temperature chemical pump according to claim 1, it is characterised in that：The sprung parts (4) are internally provided with shoe cream room
(12), the shoe cream room (12) is located at opposite side of the end cover (3) compared with pump cover (2), the sprung parts (4) and main shaft
(5) bearing (13) is equipped between, the bearing (13) connects setting with shoe cream room (12), set respectively on the sprung parts (4)
Fuel feed hole (14) and oil outlet (15), the fuel feed hole (14) for having connection shoe cream room (12) are close with being equipped on oil outlet (15)
Seal bolt (16).
5. low temperature chemical pump according to claim 4, it is characterised in that：It is located at shoe cream room on the sprung parts (4)
(12) position distribution of lateral wall has cooling fin (17).
6. low temperature chemical pump according to claim 5, it is characterised in that：On the sprung parts (4) be located at pump cover (2) with
Position between shoe cream room (12) is equipped with the peep hole (18) of communication seals end cap (3).
7. low temperature chemical pump according to claim 1, it is characterised in that：The position that the pump cover (2) contradicts the pump housing (1) is set
There is seal washer (19).
8. low temperature chemical pump according to claim 1, it is characterised in that：The sprung parts (4) are compared with pump cover (2)
Opposite side is equipped with motor (20), and one end of main shaft (5) towards the motor (20) is pierced by sprung parts (4) and passes through metallic membrane
Shaft coupling (21) is realized with motor (20) and is driven.
9. low temperature chemical pump according to claim 6, it is characterised in that：It is located on sprung parts (4) lateral wall and sees
It examines the position between hole (18) and shoe cream room (12) and is surrounded with intensive aspect (22).
10. low temperature chemical pump according to claim 1, it is characterised in that：The end cover (3) is equipped with connection machinery
Seal the cooling water inlet pipe (23) of (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721472864.9U CN207454285U (en) | 2017-11-07 | 2017-11-07 | Low temperature chemical pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721472864.9U CN207454285U (en) | 2017-11-07 | 2017-11-07 | Low temperature chemical pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207454285U true CN207454285U (en) | 2018-06-05 |
Family
ID=62254231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721472864.9U Active CN207454285U (en) | 2017-11-07 | 2017-11-07 | Low temperature chemical pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207454285U (en) |
-
2017
- 2017-11-07 CN CN201721472864.9U patent/CN207454285U/en active Active
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| GR01 | Patent grant |